The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Z 24-120mm F4 S and the Pentax 16-85mm F3.5-5.6 ED DC WR for their suitability to various photography scenarios:
Size and Weight Comparison The size of a lens is a crucial factor to consider when comparing two lenses. Nikon Z 24-120mm F4 S is the longer of the two lenses at 118mm. The Pentax 16-85mm F3.5-5.6 ED DC WR with a length of 94mm, is 24mm shorter. Besides being longer, the Nikon Z 24-120mm F4 S also has a larger diameter of 84mm compared to the Pentax 16-85mm F3.5-5.6 ED DC WR's 78mm diameter.
Below you can find a scaled side-by-side image of Nikon Z 24-120mm F4 S and Pentax 16-85mm F3.5-5.6 ED DC WR to get a better idea of how their sizes compare in real life.
Comparison image of the Nikon Z 24-120mm F4 S and the Pentax 16-85mm F3.5-5.6 ED DC WR Size and Weight The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Pentax 16-85mm F3.5-5.6 ED DC WR weighs 488g, 22% (142g) lighter than the Nikon Z 24-120mm F4 S's weight of 630g.
Filter Threads
The Nikon Z 24-120mm F4 S has a filter size of 77mm whereas the Pentax 16-85mm F3.5-5.6 ED DC WR has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Nikon Z 24-120mm F4 S:
And these are the 72mm filters that we recommend for the Pentax 16-85mm F3.5-5.6 ED DC WR:
Lens Mounts
The Nikon Z 24-120mm F4 S has the Nikon Z lens mount whereas the Pentax 16-85mm F3.5-5.6 ED DC WR has the Pentax KAF3 lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon ZR , Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Pentax K-3 III Mono , Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount.
Focal Range
Nikon Z 24-120mm F4 S has a focal range of 24-120mm and
5.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 180mm .
On the other hand, the Pentax 16-85mm F3.5-5.6 ED DC WR has a focal range of 16-85mm and 5.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-127.5mm when used on a APS-C / DX format camera.